package lab;

public class test {
	public static void main(String args[]){
		CalculatorInterface calc= new Calculator();
		System.out.println(calc.add(1, 3));
		System.out.println(calc.subtract(1, 3));
		System.out.println(calc.divide(3, 6));
	    System.out.println(calc.multiply(3, 6));}
}
